"Holy moly, the hardest part of this movie was acting like I was not attracted to my mother," Segel joked to On The Red Carpet. "She's so foxy. It was a total honor to get to act next to someone of her caliber."

Segel went on to say he enjoyed starring in Jeff, Who Lives At Home because the film was a true change from the comic blockbusters he usually stars in.

He explained: "It was exciting for [me] to get to stretch a little bit, you know, you always fancy yourself an actor and it's neat to see if you're actually right.

"What's great about [Jeff, Who Lives At Home directors] the Duplass brothers, is that they want you to stretch yourself and they want you to be your best and they gave us that opportunity, so I think we're all really thankful about that."

Jeff, Who Lives At Home - which also stars Ed Helms and Judy Greer â€“ is now playing in the US and opens on May 11 in the UK.